The carbon still

Some people like to make home brew, and some like it a bit more potent. So…

Another of graphene’s amazing properties is that it lets water through, but not alcohol. So, when the home brew is ready, you could put it into a graphene still.

A graphene still might simply contain two parts separated by a graphene membrane. You pour in your beer and just wait a while until enough water has migrated down through the membrane, leaving the beer with higher alcohol content, albeit not quite so much beer. By adjusting the position of the graphene membrane, you can adjust the alcohol content.